From 2fbdbde3ab31f4a6f89d951542aa6d1d8c2f570a Mon Sep 17 00:00:00 2001
From: hwdsl2 <hwdsl2@users.noreply.github.com>
Date: Thu, 19 May 2022 23:57:26 -0500
Subject: [PATCH] Add check for nftables

---
 openvpn-install.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/openvpn-install.sh b/openvpn-install.sh
index c14f7f7..3e7903e 100644
--- a/openvpn-install.sh
+++ b/openvpn-install.sh
@@ -85,6 +85,11 @@ This version of CentOS is too old and unsupported."
 	exit
 fi
 
+if [ "$os" = "centos" ] && grep -qs "hwdsl2 VPN script" /etc/sysconfig/nftables.conf; then
+	echo "This system has nftables enabled, which is not supported by this installer."
+	exit
+fi
+
 # Detect environments where $PATH does not include the sbin directories
 if ! grep -q sbin <<< "$PATH"; then
 	echo '$PATH does not include sbin. Try using "su -" instead of "su".'